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## Class 12 Mathematics-Tips on Relations and Functions

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Here are Tips in Mathematics which will give you an exact idea of the topics that you should prepare for in Relations and Functions-Class 12 Maths NCERT. This is keeping in mind the changes prescribed by the NCERT board for the academic year 2023-24. To start with, you need to know that 2 chapters, namely , Relations and Functions and Inverse Trigonometric Functions comprise this topic.

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What is a Relation

The 3 basic examples of a Relation namely, the Universal Relation, Empty Relation and Identity Relation.

Types of Relations:Reflexive, Symmetric and Transitive

Equivalence Relations and Equivalence Classes

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Functions

Types of functions- Injective and Surjective

Bijective functions

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MCQ Question on number of Surjective Functions from a finite set A to a finite set B

In this context, you need to know a few important points such as:

Number of bijective functions from a finite set A to a finite set B.

Number of injective and surjective functions from a finite set A to a finite set B.

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How to find the number of relations and functions from a set A to a set B.

Calculate the equivalence relations on a set containing 2 or 3 elements.

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There are a number of free resources below in the form of Youtube videos and multiple choice questions, I encourage you to utilise these resources to the best of your ability.

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MCQ Questions in Relations and Functions-Guarantee your Success

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If you want to keep your cost low, you could form groups of 5 or 10 and sign up. Motivating you to learn Mathematics!

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